/*
 * @Author: c
 * @Date: 2023-12-26 04:23:18
 * @LastEditTime: 2024-01-17 01:17:52
 * @LastEditors: c
 * @Description: 
 * @FilePath: \music-web-backend\src\common\dto\page.dto.ts
 * https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
 */
// Copyright 2023 Administrator
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

import { Transform } from "class-transformer";
import { IsInt, IsNumber, Min } from "class-validator";


export class PageDto {

    haveMore?: boolean


    // @IsInt({ message: "页数必须是数字类型", always: false })
    // @Allow()
    @Transform((value) => {

        return +value
    })
    @IsNumber({ allowNaN: false }, { message: "页数必须是数字类型", always: false })
    @Min(1) //最小是1不能是负数
    pageNum: number;


    @Transform((value) => {

        return +value
    })
    @IsInt({ message: "页数必须是数字类型", always: false })
    pageSize: number;
}

export class PageResDto<T> {
    list: T[];
    total: number;
    constructor(list: T[], total) {
        this.list = list;
        this.total = total;
    }

    static result<T>(list: T[], total) {
        const result = new PageResDto(list, total)
        return result
    }
} 